If you’ve been to visit the Charles Hosmer Morse Museum of American Art, you know that the collection of Tiffany leaded-glass windows it houses is spectacular. Once a year the museum takes nine of these precious windows, illuminates them and puts them on display outdoors in Central Park for the world to view while the Bach Festival Choir and Brass Ensemble performs a Christmas concert. It’s a surreal but gorgeous annual event to ring in the Christmas season. It’s also a wildly popular affair – hundreds of people pack into the park with blankets, folding tables, wine and snacks to make an evening of it. People can start setting up any time after 4 p.m. to get a good view of the stage and ensure a space in the park, which is guaranteed to be standing-room-only (and even standing room is limited) well before the 6:15 p.m. kickoff. Word to the wise: Get there early. Bring lots of wine.